Use this to sew together eight separate 45 degree triangle units such as Kaleidoscopes and Dresden Plate blocks. These triangles can also be pieced into a saw tooth border or blocks with a finished height of 8" piece blocks that are up to a finished size of 16". Ruler includes 1/4" dashed lines printed on each side of the center vertical line so you can cut 22.5 degree triangles that include the seam allowance. This ruler also easily slides over fabric until pressure is applied then the exclusive gripper on the backside of the ruler hold the fabric in place while you cut, to eliminate slipping and miss-cuts.
Learn more by watching this quilting tutorial that features this ruler.